Montreal need to win on Tuesday to give themselves any hope of advancing in the CONCACAF Champions League.

With only three points entering their fourth and final group league game, anything less than a win would assure that the Impact's continental season is over.

Guatemalan group leaders Heredia picked up home wins against both Montreal and San Jose to kick off the group stage and a draw would assure they advance on to the Championship stage.

Montreal, losers of their last three games across all competitions, face a tough decision in terms of personnel as Tuesday's game is their fourth in 11 days, and they are in desperate need of a kick in MLS play to stop their freefall.

In order to win, the Montreal attack, which has been held goalless over their last 255 minutes of action, must spring to life to take some of the burden off of their aging defense.

With aging stars such as Alessandro Nesta, Marco di Vaio, Matteo Ferrari, and Davy Arnaud, Montreal manager Marco Schallibaum must juggle the urgency of Tuesday's game with their potential ability to contribute Saturday against Chicago in MLS play.

Heredia, who beat both Montreal and San Jose 1-0 with lone second half goals, have no injuries or suspensions impeding their lineup selection for Tuesday's game while Montreal are without Nelson Rivas, Adrian Lopez, and Hernan Bernardello for the game.